A corpora



April 28. 1925.- A

' F. M. EDGAR ET AL LOCK Fild June 22. 192s FRANK M. EDGAR AND OtEAS l. ARCI-IER, F DETRGIT, MICHIGAN, ASSIGNORS TO TER'NSTEDT MANFAGTURNG OVIANY,

TION OE MCHIGAN.

OF DETROET, MGHIGAN, A CORPORA- LOCK.

,Application led June 22,

lie it known that FRANK M. EDGAR and 'lluoims i7. Ancien, citizens of the United States, residing at letroit, in the county of Vayne and State of hiiichigan, have invented certain new and useful improvements in Locks, of which the following is a specilication.

This invention relates to locks and more particularly to automobile locks of the type provided with a vertical rotary spindle.

The locks now on the market, have a sliding bolt construction which sometimes catches on the guide members struck down from the cover plate, preventing the sliding bolt from being` retracted. y@ne of the objects of the present inrention is to so construct the sliding bolt that it is guided by the tongues struck oown 'from the cover plate dining its entire moven'ient.

further object is to provide means for holding in place the spring for shooting the bolt, and to prevent the same from jumping up, thereby becoming disengaged from the sliding bolt.

Another object is to provide an improved chair construction for the sliding bolt which is cheaper to bnild and more easily assembled.

In the drawings:

Fig. l is a plan view of the lock.

Fig. 2 is a section on the line 2 2 of Fig. l showing the means for guiding the sliding bolt.

Fig. 3 is a section on the line 3-3 of Fig. l showing the spring retaining means.

Fig. 4 is a detail in perspective of the sliding bolt.

The lock consists of a face plate a a front plate Z) and a cover plate c. A vertical rotary spindle (Z is mounted in bearings e carried by the front plate and the central portion of the spindle is bent as shown for the purpose of engaging the sliding` bolt in a manner later to be described. rllhe sliding bolt is provided with the usual lng f, and the roll bacl; g mounted in the front plate is adapted to engage the lug` f for retracting the bolt. A thumb turn iaetuates the dogging member z' for clogging the roll back.

rl`he inner end of the sliding bolt is provided with turned up sides a portion of said turned up sides being of a greater height than the rest so as to abut the side of the angle bar m which is riveted as at n. to the 1923. Serial N0. 647,128.

face of the sliding bolt a. rlhis provides an improved chair construction which can be more easily made and assembled than that of the prior art. The bent middle portion of the spindle is adapted to engage this chair portion whereby rotation of the spindle will cause the sliding bolt to be retracted.

The cover plate c is provided with a pair of down-turned ears 0 which are adapted to slidably contact with the outer surfaces of the tip-turned sides is of the sliding bolt for the purpose of guiding the same. Since the rip-turned sides of the sliding bolt are in engagcment with the guiding ears during the entire movement of said sliding bolt, there is no tendency for the down-turned guiding ears to obstruct the free retraction of the sliding bolt.

A spial spring p carried by the front plate is adapted to engage the end of the sliding bolt for forcing the same outwardly. To prevent this spring from becoming diseng, ed from the end of the sliding bolt, a por Von of the cover plate designated Q is depressed as shown in Fig. 3 for the purpose of holding the spring in place.

This construction is easily assembled and it overcomes the objectional features of the other locks which sometimes cause serious difficulty in their operation.

lWhat we claim is:

l. ln a lock, the combination of a cover plate, a sliding bolt, means adapted to engage the sliding bolt for the purpose of retracting the same, the :inner end of the boltl provided with -raised bearing surfaces and ears struck down from the cover plate adapted to engage the bearing surfaces of the bolt for the purpose of guiding the same.

2. In a lock, the combination of a cover plate, a sliding bolt, means for retracting the same, the inner end of the sliding bolt provided with turned up edges forming side walls, and cars struck down from the cover plate for engaging said side walls to guide the sliding` bolt.

3. ln a lock, the combination of a cover plate, a sliding` bolt, a spring adapted to engage the sliding bolt for forcing the same outwardly, and a depressed rib portion carried by the cover plate adapted to bear on the spring for holding the same in place.

Ll. In a lock, the combination of a cover plate, a sliding bolt, a spring adapted to engage the sliding bolt for forcing the same Cil outwardly, and an elongated rib depressed from the cover plate and adapted to bear on the spring to prevent the saine troni becoming disengaged. from the eliding` bolt.

5. ln a look, the combination ol" a Cover plate, a slidingbolt, means for retraeting' the saine, ythe inner end oli the sliding bolt provided with turned up edges forming side Walls, a portion of Saideide Wallsbeing out away and Slidably guided under the cover plate, and ears struekdown 'from the @over plate or engaging said side Walls to also guide the SlidingT bolt.

6. In a lock, the Combination oi a cover plate provided with. a central opening, a sliding bolt, .means for retiaeting; the saine, the inner end et said sliding bolt provided with turned up edges forming), side walls, a portion of `which project through the opening in the cover plate and the ren'iaining .portion of said Side Walls slidably guided under the eover plate, and ears struck down from the cover plate for engaging aid Side Walle to guide `the slidingbolt, that portion olf the side walls projecting through the opening adapted to engage the edge of the opening in the cover plate ior the purpose oit' limiting the retraetingf movement of said Sliding bolt.

`In testimony whereof We affix our signatures.

FRANK M. EDGAR. THOMAS l?. ARCHER. 

